Affect regulation is generally considered the most important function of music listening (FML). Yet, models of wellbeing also highlight engagement, relationships, meaning, achievement, and other adaptive functions that music may facilitate. However, there is currently no consensus as to how these adaptive FML co-function within an enhancement system that supports wellbeing. The current study used the collective intelligence methodology, Interactive Management (IM) to address this gap in the literature. Four IM sessions were conducted, two with younger adults (N = 24) and two with older adults (N = 19). Participants responded to the stimulus question "why do you listen to music?" Each participant then voted for five FML they believed were most significant for enhancing wellbeing. The eight highest ranked functions were entered into Interpretive Structural Modelling software, and relations between pairs of FML were discussed. Four structural models were generated demonstrating potential interdependencies in FML in the context of wellbeing enhancement. Age differences emerged in the FML considered adaptive: younger adults emphasized affect regulation and social connection, whereas older adults emphasized more eudaimonic functions of music (e.g., Transcendence and personal growth). The influence of FML are discussed in reference to key wellbeing and developmental theories.